Answer:
carbon source Earth's crust
According to the research, the correct answer is fiber composites. Because cell walls consist of a cross-linked network of long filaments embedded in a stiff surrounding material, they can be called fiber composites.
<h3>What are
cell walls?</h3>
It is a network that covers prokaryotic cells and plant cells that is located outside the plasma membrane, helping to form the structure.
In this sense, since it is made up of a network of carbohydrates, phospholipids and structural proteins, and the different cell types of plants can be identified by their characteristics, they can be called fiber composites.
Therefore, we can conclude that cell walls are a network embedded in a matrix composed of carbohydrates and proteins.
Learn more about cell walls here: brainly.com/question/965751
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1000 grams are in one kilogram
Aristotle finds the good and noble man to be selfish. But from his virtue and righteous behavior emerge gifts that his friends, his homeland, and his own community benefit from. He is a committed person who looks down upon material wealth, but enjoys the benefits of honor and dignity.
Keratin is an intracellular fibrous protein that gives hair, nails, and skin their hardness, strength, and water-resistant properties. The keratinocytes in the stratum corneum are dead and regularly slough away, being replaced by cells from the deeper layers
Hope this helped!
Good luck :p
~Emmy <3
